Mechanical pencil



FIG. 1 is a perspective view of a mechanical pencil, showing our new design;

FIG. 2 is a front view of the mechanical pencil;

FIG. 3 is a rear view of the mechanical pencil;

FIG. 4 is a top view of the mechanical pencil;

FIG. 5 is a bottom view of the mechanical pencil;

FIG. 6 is a left side view of the mechanical pencil;

FIG. 7 is a right side view of the mechanical pencil; and,

FIG. 8 is an enlarged bottom view of the mechanical pencil.

The parts shown in broken lines are portions of the mechanical pencil that form no part of the claimed design. 

CLAIM The ornamental design for a mechanical pencil, as shown and described. 